BMW DTC U0017 – Medium Speed CAN Communication Bus (-) High
DTC U0017 meaning on BMW
The DTC U0017 code on a BMW indicates an issue with the Medium Speed Controller Area Network (CAN) communication bus. This code specifically points to a problem with the (-) High signal on the Medium Speed CAN bus.
BMW DTC U0017 symptoms
Symptoms of the DTC U0017 code on a BMW may include:
- Check Engine Light (CEL) illuminated on the dashboard
- Problems with communication between various control modules in the vehicle
- Issues with transmission shifting or stability control systems
BMW DTC U0017 causes
Common causes of the DTC U0017 code on a BMW include:
- Faulty wiring or connections in the Medium Speed CAN bus circuit
- Defective control module(s) related to the Medium Speed CAN communication
- Interference from other electronic components or devices
BMW DTC U0017 seriousness
The DTC U0017 code should be addressed promptly as it can lead to communication issues between critical systems in the vehicle. Ignoring this code may result in performance issues or safety concerns while driving.
How to diagnose DTC U0017 on BMW
To diagnose the DTC U0017 code on a BMW, a mechanic may perform the following steps:
- Use a diagnostic scanner to retrieve the specific fault codes stored in the vehicle’s computer
- Inspect the wiring and connections related to the Medium Speed CAN bus for any visible damage or corrosion
- Check the control modules associated with the Medium Speed CAN communication for proper functioning
- Perform a communication test to identify any issues with data transfer on the CAN bus
How to fix DTC U0017 on BMW
To fix the DTC U0017 code on a BMW, the following steps may be taken:
- Repair or replace any damaged wiring or connections in the Medium Speed CAN bus circuit
- Replace any faulty control modules related to the Medium Speed CAN communication
- Ensure proper shielding and grounding of electronic components to prevent interference
How to erase DTC U0017 on BMW
To erase the DTC U0017 code on a BMW, a diagnostic scanner can be used to clear the fault codes stored in the vehicle’s computer. After addressing the underlying issue causing the code, the scanner can be used to reset the system and clear the code from the memory.
Recommended tools & DTC Scanners for BMW
Best Diagnostic App for modern BMWs: BimmerLink
Recommended Bluetooth adapter for Bimmerlink: OBDLink CX
Cable adapter for Bimmerlink: Enet Cable USB Type C
For older BMWs we recommend: Autel AutoLink AL319 (2024 version)
Easy-to-use Multimeter for reliable diagnostics: AstroAI Auto-ranging Multimeter
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